*SUPPORT*
IN: wif OUT: BLUE
IN: zup OUT: GREEN
IN: wif kiki zup kiki zup OUT: BLUE GREEN GREEN
IN: zup blicket tufa blicket OUT: GREEN RED RED
IN: wif fep wif OUT: BLUE BLUE
IN: wif fep wif fep blicket OUT: RED BLUE BLUE
IN: dax fep dax OUT: PINK PINK
IN: dax blicket tufa blicket fep dax OUT: PINK PINK RED RED
IN: blicket tufa dax tufa wif dax fep blicket OUT: RED RED PINK BLUE PINK
IN: blicket fep blicket OUT: RED RED
IN: blicket fep wif kiki blicket tufa wif OUT: BLUE RED RED BLUE
IN: blicket tufa zup fep dax OUT: PINK RED GREEN
IN: wif tufa blicket tufa wif fep dax OUT: PINK BLUE RED BLUE
IN: blicket OUT: RED

*QUERY*
IN: zup wif OUT: GREEN BLUE
IN: dax wif OUT: PINK BLUE
IN: zup tufa wif OUT: GREEN BLUE
IN: dax dax dax dax OUT: PINK PINK PINK PINK
IN: dax OUT: PINK
IN: dax fep wif OUT: BLUE PINK
IN: dax tufa wif tufa blicket fep wif OUT: BLUE PINK BLUE RED
IN: blicket tufa zup kiki blicket dax OUT: RED GREEN RED PINK
IN: wif tufa dax tufa blicket OUT: BLUE PINK RED
IN: wif zup wif tufa wif OUT: BLUE GREEN BLUE BLUE

*GRAMMAR*
blicket -> RED 
 wif -> BLUE 
 zup -> GREEN 
 dax -> PINK 
 x1 fep u1 -> [u1] [x1] 
 u1 tufa x1 -> [u1] [x1] 
 x1 kiki x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 